GO-2025-4006

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Source
https://pkg.go.dev/vuln/GO-2025-4006
Import Source
https://vuln.go.dev/ID/GO-2025-4006.json
JSON Data
https://api.osv.dev/v1/vulns/GO-2025-4006
Aliases
Related
Published
2025-10-29T21:48:35Z
Modified
2026-02-17T16:13:53.018755Z
Summary
Excessive CPU consumption in ParseAddress in net/mail
Details

The ParseAddress function constructs domain-literal address components through repeated string concatenation. When parsing large domain-literal components, this can cause excessive CPU consumption.

Database specific 
{
    "url": "https://pkg.go.dev/vuln/GO-2025-4006",
    "review_status": "REVIEWED"
}
References
Credits
    • Philippe Antoine (Catena cyber)

Affected packages

Go / stdlib

Package

Name
stdlib
View open source insights on deps.dev
Purl
pkg:golang/stdlib

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.24.8
Introduced
1.25.0
Fixed
1.25.2

Ecosystem specific 

{
    "imports": [
        {
            "symbols": [
                "AddressParser.Parse",
                "AddressParser.ParseList",
                "Header.AddressList",
                "ParseAddress",
                "ParseAddressList",
                "addrParser.consumeDomainLiteral"
            ],
            "path": "net/mail"
        }
    ]
}

Database specific

source 
"https://vuln.go.dev/ID/GO-2025-4006.json"